JPH0626698A - Controller of air conditioner - Google Patents

Abstract

PURPOSE:To offer an air conditioner where microcomputers used in an outdoor unit, an indoor unit and remote controller can be easily reset. CONSTITUTION:An outdoor unit 1, an indoor unit 2 and a remote controller 3 are respectively equipped with microcomputers 14 and reset devices 13 which reset the microcomputers 14 according to detected reset signals. The outdoor unit 1 and the indoor unit 2 are provided with reset signal judging devices 12 which detect reset signals from signals on transmission lines 7, and the remote controller 3 is provided with a reset signal generating/judging device 11.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to an outdoor unit for an air conditioner,
The present invention relates to an air conditioner and a reset control method capable of performing appropriate reset control with respect to a microcomputer runaway of an indoor unit and a remote controller.

[0002]

2. Description of the Related Art Generally, an air conditioner is composed of an outdoor unit, a plurality of indoor units and a remote controller, and is provided with a medium for transmitting communication data of the air conditioner. Microcomputers are used due to cost reduction. The microcomputer may run out of control, and it is necessary to reset the power supply when the microcomputer goes out of control. That is, the microcomputer provided in the outdoor unit, the indoor unit and the remote control unit of the air conditioner is once turned off to initialize the microcomputer and reset the runaway of the microcomputer. Therefore, it is necessary to reset the power supply of the air conditioner system included in the runaway unit.

Conventionally, in order to meet such a demand, FIG.
In the air conditioner system as shown in FIG. 1, 1 is an outdoor unit, 2 is an indoor unit, and 3 is a remote controller. Reference numeral 4 is a power line for supplying power to the air conditioner, 5 is a power breaker for supplying and shutting off power to the air conditioner, and 6 is a transmission line as a medium for transmitting communication data. The line 6 uses a transmission method in which the power supply of the remote controller 3 is superimposed on the communication signal and used together.

Since the conventional air conditioner system is constructed as described above, when resetting the microcomputers of the outdoor unit 1, the indoor unit 2 and the remote controller 3, the power is turned off by the power breaker 5 and the power is turned on again. I was trying to throw in. Also, the microcomputers of all units were reset at once.

[0005]

As described above, in the conventional air conditioner system, when the runaway microcomputer is reset, the power breaker 5 of the air conditioner is moved to the place where the power breaker 5 is installed. It was necessary to operate, and there was troublesome work in resetting. In addition, there is a problem that it is not possible to reset only the type of unit that has the microcomputer to be reset.

The present invention has been made in order to solve such a problem, and an object thereof is to be installed in a short place and to reset a microcomputer by means of easy operability. It provides a device that can reset the microcomputer for each type.

[0007]

A control device for an air conditioner according to claim 1 of the present invention is an air conditioner including devices such as an outdoor unit, an indoor unit, and a remote controller, and each of the above devices. A control device for an air conditioner provided with a transmission means for transmitting a signal between devices, the microcomputer provided in each of the devices, and provided in each of the devices,
Reset signal generating means for outputting a reset signal to the transmitting means, reset signal determining means provided in each of the devices for detecting a reset signal from the signal of the transmitting means, and reset signal determining means provided in each of the devices for resetting A means for resetting the microcomputer of the device according to the reset signal detected by the signal determining means is provided.

According to a second aspect of the present invention, there is provided a control device for an air conditioner, which sends a signal between the respective devices to an air conditioner including devices such as an outdoor unit, an indoor unit and a remote controller. A control device for an air conditioner provided with transmission means for transmitting, comprising: a microcomputer provided in each of the devices, and a target designation provided in each of the devices and designating any one of the devices as a reset target. Reset signal generating means for outputting a reset signal containing information to the transmission means, and reset for detecting a reset signal provided in each of the devices and containing target designation information for designating the device from the signal of the transmission means The signal determination means and the reset signal provided in each of the devices and detected by the reset signal determination means resets the microcomputer of the device. It took measures that comprises a reset means for.

[0009]

According to the control device for an air conditioner of the first aspect of the present invention, a reset signal is generated by manually turning on the reset signal generation control means and is output to the transmission means. The reset signal determination unit detects the reset signal from the signal of the transmission unit, operates the reset unit according to the detected reset signal, and resets the microcomputer of each device.

According to the air conditioner control device of the second aspect, the reset signal output from the reset signal generating means includes the target designation information for designating any one of the devices as a reset target. Output to the transmission means, and the reset determination means provided in each device detects a reset signal including target designation information for designating the equipment from the signal of the transmission means. Reset only the microcomputer of the device.

[0011]

【Example】

Example 1. FIG. 1 is a configuration diagram of an embodiment of an air conditioner according to the present invention. In FIG. 1, 1 is an outdoor unit, 2 is an indoor unit, 3 is a remote controller, and 7 is a transmission line for communicating various signals between the outdoor unit / indoor unit and the remote controller. Reference numeral 8 is a transmission power supply device for supplying power to the transmission line and the remote control unit, 9 is a transmission processor for transmitting and receiving signals through the transmission line 8, 10 is a reset signal generation switch provided in the remote control 3, 11 Is a reset signal generation judging means for judging whether the signal on the transmission line 8 is a reset signal by generating a reset signal by turning on the reset signal generating switch 3, and 12 is the outdoor unit 1 and the indoor unit 2 Reset signal determining means for determining whether or not the signal on the transmission line 7 is a reset signal, 13
Is a reset means for resetting the microcomputer 14, which is a control means for the outdoor unit 1, the indoor unit 2, and the remote controller 3, based on the output result of the reset signal determination unit 12 determining the signal as a reset signal.

FIG. 2 is a system configuration diagram of an air conditioner composed of the outdoor unit 1, the plurality of indoor units 2 and the remote controller 3 shown in the first embodiment of FIG.

Next, the operation of the first embodiment will be described with reference to FIGS. FIG. 3 is a flowchart showing the reset operation of the remote controller, and FIG. 4 is a flowchart showing the reset operation of the outdoor unit and the indoor unit.

First, in resetting the microcomputer of the air conditioner, when the reset signal generating switch 10 provided in the remote controller 3 is pressed in step S1, the ON signal is input to the reset signal generating / determining means 11,
In step S5 shown in, a reset signal is generated. Then, in step S2, it is determined whether or not the received signal is a reset signal, and when the result is determined to be a reset signal, the reset means 13 is turned on to output the reset signal in step S3, and the microcomputer 14 is activated in step S4. Reset. In the outdoor unit 1 and the indoor unit 2, whether or not the signal on the transmission line 7 is the reset signal is determined in step S6 shown in FIG. 4, and when the signal is determined to be the reset signal, in step S7. The reset means 13 is turned on to output a reset signal, and the microcomputer 14 is reset in step S8.

The reset signal determination operation is to determine the communication signal and the reset signal transmitted by the transmission line 7. For example, as shown in FIG. 5, the communication line and the reset signal are transmitted to the transmission line 7 in a state in which they are superimposed as signals of different frequencies. For example, by setting the frequency of the communication signal to be six times as high as that of the reset signal, it is possible to distinguish both signals by the frequency difference. Then, reset signal generation / determination means 11 and reset signal determination means 12 independent of the transmission processor 9
The signal on the transmission line 7 is constantly checked by the reset signal.

Since the reset signal judging means 12 discriminates by the difference in the waveform of the communication signal and the waveform of the reset signal as described above, the reset signal generating / judging means 11 provided in the remote controller 3 , Resetting each device that receives the reset signal by generating reset signals of different frequencies depending on whether the reset target is the outdoor unit 1, the indoor unit 2, or the remote controller 3. If the signal determining means determines whether or not it is applicable, the applicable microcomputer 1
It is also possible to reset only 4.

The reset signal determination operation will be described with reference to FIGS. 6 and 7. As shown in FIG. 6, step S
In 9, S10 and S11, it is determined whether any switch of the reset signal generating switches 10 provided in the remote controller 3 is pressed, and the frequency is changed in steps S12, S13 and S14 accordingly. The reset signal is output on the transmission line 7.

In step S15, it is determined whether the received signal is a reset signal for the remote controller 3,
As a result, the microcomputer 14 of the remote controller 3 is reset in steps S16 and S17. As shown in FIG. 7, in the outdoor unit 1 and the indoor unit 2, step S18
In step S19, it is determined whether or not the signal on the transmission line 7 is a reset signal for the outdoor unit 1 or the indoor unit 2, and the result resets the microcomputer 14 of the outdoor unit 1 or the indoor unit 2 in steps S19 and S20. To do.

Example 2. In the first embodiment, the transmission of the reset signal is superimposed and transmitted on the transmission line 7 which is the medium of the signal for communication, but the transmission of the reset signal uses the transmission medium dedicated to the reset signal. It is also possible. For example, by providing a dedicated transmission line for transmitting a reset signal in addition to the communication signal transmission line 7, the reset signal can be directly input to the microcomputer of each unit to reset the microcomputer.

Further, the reset signal determining means is provided only in the remote controller 3, but it may be provided in the outdoor unit 1 and the indoor unit 2 so that any device can generate the reset signal. . In the above description, the case where the present invention is used for resetting the microcomputer of the air conditioner has been described, but it goes without saying that the present invention can also be used for resetting the microcomputer used for other things.

[0021]

As described above, according to the present invention, in order to reset the microcomputer of the air conditioner, means for generating a reset signal is provided, and the reset signal is transmitted through a transmission line which is a transmission medium of a signal for communication. Outdoor unit, indoor unit,
It is configured to detect the reset signal by the reset signal determination means provided in each unit such as a remote controller, and reset the microcomputer of each unit based on the result, work to reset the power breaker of the air conditioner It is possible to obtain an effect that the microcomputer of each device can be easily reset by operating the reset signal generating means of the familiar unit such as the outdoor unit, the indoor unit, or the remote controller without any trouble.

Further, the reset signal generation means outputs a reset signal including target designation information designating any one of the respective devices as a reset target to the transmission means, and the reset signal determination means outputs the reset signal from the signal of the transmission means. A desired device can be designated and reset by detecting a reset signal including target designation information that designates the device.

[Brief description of drawings]

FIG. 1 is a configuration diagram of an embodiment of an air conditioner according to the present invention.

FIG. 2 is a system configuration diagram of the air conditioner.

FIG. 3 is an operation flowchart of a reset signal generating / determining means provided in the remote controller of the air conditioner.

FIG. 4 is an operation flowchart of reset signal determination means provided in the outdoor unit and the indoor unit of the air conditioner.

FIG. 5 is a diagram showing waveforms of a communication signal and a reset signal in the air conditioner.

FIG. 6 is an operation flowchart of a reset signal generation / determination unit included in the remote controller of the air conditioner.

FIG. 7 is an operation flowchart of reset signal determination means provided in the outdoor unit and the indoor unit of the air conditioner.

FIG. 8 is a configuration diagram of a conventional air conditioner system.

[Explanation of symbols]

 1 outdoor unit 2 indoor unit 3 remote controller (remote controller) 7 transmission line 9 transmission processor 10 reset signal generation switch 11 reset signal generation / determination means 12 reset signal determination means 13 reset means 14 microcomputer

Claims (2)

[Claims] 1. A control device for an air conditioner, comprising: an air conditioner including an outdoor unit, an indoor unit, a device such as a remote controller, and a transmission means for transmitting a signal between the devices. A microcomputer provided in each of the devices, a reset signal generating device provided in each of the devices and outputting a reset signal to the transmission device, and each device provided in each of the devices, and reset from the signal of the transmission device. An air conditioner comprising reset signal determining means for detecting a signal, and reset means provided in each of the devices and resetting a microcomputer of the device by a reset signal detected by the reset signal determining means. Control device. 2. A control device for an air conditioner, comprising: an air conditioner composed of an outdoor unit, an indoor unit, a device such as a remote controller, and a transmission means for transmitting a signal between the devices. A reset signal generator for outputting to the transmission means a microcomputer provided in each of the devices and a reset signal provided in each of the devices and including target designation information for designating one of the devices as a reset target. Means, and reset signal determination means provided in each of the devices, for detecting a reset signal including target designation information for designating the device from the signal of the transmission means,
A control device for an air conditioner, comprising: a reset unit that is provided in each of the devices and that resets a microcomputer of the device by a reset signal detected by the reset signal determination unit.